Docproperty (2007)

I try to make a word template for my client.
In a file folder, there is the word template .docx and a data.xml which contains all the info to display.

I added a file object (data.xml) in my word template. In order to use the object correctly,
the property <<File Locations->Documents>> should be changed at first. But the client thinks it bothersome.
I want to make the property change without scripting. For example, use a relative path way.
Can I realize it?